Home / 20,792.91-28,694.22-11,232.80

Finding the Fourth Proportional to 20,792.91, 28,694.22 and 11,232.80

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Solution

The fourth proportional to 20,792.91, 28,694.22 and 11,232.80 is: 15,501.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.91 : 28,694.22 = 11,232.80 : x
  2. Step 2: Convert to fraction form
    20,792.91/28,694.22 = 11,232.80/x
  3. Step 3: Cross multiply
    20,792.91x = 28,694.22 × 11,232.80
  4. Step 4: Simplify right side
    20,792.91x = 322,316,290.94
  5. Step 5: Solve for x
    x = 322,316,290.94/20,792.91
  6. Step 6: Final answer
    x = 15,501.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.